Dear Maxime, > Likewise as for python-coverage-5.5, why the separate package? Both python-pytest-cov and python-coverage have a lot of dependents, they must be updated on staging... $ guix refresh --list-dependent python-pytest-cov Building the following 521 packages would ensure 1172 dependent packages are rebuilt: python-pysox [...] $ guix refresh --list-dependent python-coverage Building the following 627 packages would ensure 1408 dependent packages are rebuilt: u-boot-puma-rk3399 [...]\ I sent a patch for python-pytest-cov back in march, (https://git.savannah.gnu.org/cgit/guix.git/commit/?h=staging&id=12c9da35389dfba86ae0d863132a6b2c4374205a) but I didn't manage to find the time to do it also for python-coverage. Thank you, Giacomo